LA Fishguy Bio Pellets video

[lastlight]

Creative use of a single pump to recirc and also pull from sump and put it back I like.

They mention stripping things out too fast... I wish there was an answer for people like me with algae doing just fine and levels of p04 close to or zero on a meter and nitrates the same. I can't really adjust a reactor properly when according to tests these levels are super low (they mustn't be though).